package com._常用API;

import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

/**
 * @author liyiruo
 * @Description
 * @Date 2022/11/18 上午9:31
 */
public class StuMap {
    Map<Object, Object> map = new HashMap<>();
    ConcurrentHashMap<Object, Object> concurrentHashMap = new ConcurrentHashMap<>();
}
